The U.S. health care system is in crisis. At stake are the quality of care for millions of Americans and the financial well-being of individuals and employers squeezed by skyrocketing premiums-not to mention the stability of state and federal government budgets. In Redefining Health Care, internationally renowned strategy expert Michael Porter and innovation expert Elizabeth Teisberg reveal the underlying-and largely overlooked-causes of the problem, and provide a powerful prescription for change. The authors argue that participants in the health care system have competed to shift costs, accumulate bargaining power, and restrict services, rather than create value for patients. This zero-sum competition takes place at the wrong level-among health plans, networks, and hospitals-rather than where it matters most, in the diagnosis, treatment, and prevention of specific health conditions. Redefining Health Care lays out a breakthrough framework for redefining health...